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The periodic table

7 lessons in Atomic structure and the periodic table.

41 exam questions · 82 marks

1.10 The modern periodic table How the modern periodic table is arranged by atomic number into groups and periods, how an element's position links to its electronic structure, and the positions and properties of metals and non-metals. AQA Edexcel OCR 1.11 Mendeleev and the development of the periodic table How early scientists ordered the elements by atomic weight, how Mendeleev left gaps and predicted the properties of undiscovered elements, and how the discovery of protons and isotopes explained his order. AQA Edexcel OCR 1.12 Group 0: the noble gases Why the noble gases are unreactive and exist as single atoms, how their boiling points change down the group, how to predict properties from the trend, and how their uses depend on their properties. AQA Edexcel OCR 1.13 Group 1: the alkali metals The properties of the alkali metals, their reactions with water, oxygen and chlorine with equations, and why reactivity increases down Group 1 in terms of the outer electron. AQA Edexcel OCR 1.14 Group 7: the halogens The colours, states and trends in physical properties of the halogens, the test for chlorine, their reactions with metals and hydrogen, and why reactivity decreases down Group 7. AQA Edexcel OCR 1.15 Halogen displacement reactions How a more reactive halogen displaces a less reactive one from a solution of its salt, the colour changes and equations, how to explain the order of reactivity, and (Higher) ionic equations and redox. AQA Edexcel OCR 1.16 Transition metals Where the transition metals are, how their physical and chemical properties compare with Group 1 metals, and their typical properties: ions with different charges, coloured compounds and use as catalysts. Separate only AQA Edexcel OCR